General Information:
Chemical Formula:
Bi(Fe+++,Al)3(PO4)2(OH)6
Composition:
(Molecular Weight = 646.86 gm)
Aluminum 3.13 % Al
Iron 19.43 % Fe
Bismuth 32.31 % Bi
Phosphorus 9.58 % P
Hydrogen 0.93 % H
Oxygen 34.63 % O
Empirical Formula:
BiFe3+2.25Al0.75(PO4)2(OH)6
IMA Status:
Approved IMA 1975
Physical Properties:
Color:
greenish, greenish white, or yellow green.
Density:
4.37
Diaphaniety:
Transparent to Translucent
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous - Resinous
Streak:
white
More details...